package com.linkhouse.util;


import javax.servlet.http.HttpServletRequest;

public class RealIpUtils {
        public static String getIpAddr(HttpServletRequest request) {
            //request.getRemoteAddr()是获得客户端的ip地址
            System.out.println("Remote Addr: " + request.getRemoteAddr());
            //request.getRemoteHost()是获得客户端的主机名。
            System.out.println("Remote Host: " + request.getRemoteHost());
            String ip = request.getHeader("x-forwarded-for");
            if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)){
                ip = request.getHeader("Proxy-Client-IP");
            }
            if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)){
                ip = request.getHeader("WL-Proxy-Client-IP");
            }
            if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)){
                ip = request.getRemoteAddr();
            }
            return ip.equals("0:0:0:0:0:0:0:1")?"127.0.0.1":ip;
        }
}